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Finding the Fourth Proportional to 415,469.01, 573,374.19 and 231,728.21

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Solution

The fourth proportional to 415,469.01, 573,374.19 and 231,728.21 is: 319,799.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,469.01 : 573,374.19 = 231,728.21 : x
  2. Step 2: Convert to fraction form
    415,469.01/573,374.19 = 231,728.21/x
  3. Step 3: Cross multiply
    415,469.01x = 573,374.19 × 231,728.21
  4. Step 4: Simplify right side
    415,469.01x = 132,866,974,861.16
  5. Step 5: Solve for x
    x = 132,866,974,861.16/415,469.01
  6. Step 6: Final answer
    x = 319,799.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.